Review Heatmiser Programmable Room Thermostat - PRT/HW V3

Heatmiser Programmable Room Thermostat - PRT/HW V3Review Heatmiser Programmable Room Thermostat - PRT/HW V3

With so many on offer today, it is good to have a brand you can recognise. The Heatmiser Programmable Room Thermostat - PRT/HW V3 is certainly that and will be a superb acquisition. For this reduced price, the Heatmiser Programmable Room Thermostat - PRT/HW V3 comes widely recommended and is a popular choice for most people.


  • 5/2 day Heating Program
  • 5/2 day Hot water Program
  • Optimum Start
  • Up to 4 changes in room temperature
  • Adjustable Frost Protection (7-12°C)

Product Description

The PRT/HW can be used as an upgrade to your existing room thermostat as long as you have 3 wires (not counting the earth)

The PRT/HW also includes a timer output for the hotwater, but you dont need to use this. 

How to upgrade?  Simply set your heating programmer to constant, fit the Heatmiser PRT/HW and then program the heating times and temperatures from a single point. As long as you have three wires (exc earth), you should be fine to upgrade. You can always call 01254 870303 to check.

The following features are available; 

  • Large display
  • Optimum Start
  • °C / °F Selectable
  • Automatic blue back-light (Turns off after 30 seconds)
  • Flush mounting
  • 30 minute timing increments
  • 5/2 day Heating Program
  • 5/2 day Hot water Program
  • Up to 4 changes in room temperature
  • Key Locking Facility
  • Adjustable Frost Protection (7-12°C)
  • Easily increase or decrease the required temperature
  • Remote control optional
  • Supply: 230v
  • Outputs: Volt free 3A Max
  • Dimensions:  98mm x  85mm x 13mm (Height, Width, Depth)
  • Supplied with a 2 Year Warranty

    (The PRT/HW is flush mounting, so you will need to install a back box prior to installation. 13mm depth is after installation)